.block{
  /*border: 1px solid red;*/
  padding-bottom: 10px;
}

.block_header_pic{
  background-image:url('../img/begin_reserch.jpg');
  background-repeat: no-repeat;
  width: 15px;
  height: 25px; 
  float: left;
}

.block_header_fon{
  background-image: url('../img/fon_title_research.jpg');
  height: 25px;
}
.block_header_tema{
  color: #fff;
  font-weight:bold;
  padding-top: 5px;
  padding-left: 20px;
}

.block_line{
  background-image:url('../img/menu_fon_bottom.jpg');
  height:8px;
  font-size: 1px;
  clear:both;  
}

.block_content{
  padding: 5px;
  border: 1px solid #BEBEBE;
  background-color: #FDF3E5;
}
.content_main{
  margin-top:20px; 
  /*border: 1px red solid;*/
}
.left_content{
  width: 200px;
  float: left;
  padding-left: 15px;
  padding-right: 10px;
}
.center_content{
  width: 500px;
  float: left;
  padding-right: 10px;
}
.right_content{
  width: 200px;
  float: left;
}
.center_content_main{
  width: 700px;
  float: left;
}